Atomic scale structural and chemical quantification of non-stoichiometric defects in Ti and Bi doped BiFeO₃

BiFeO₃ has been the subject of intense interest in recent years on account of possible multiferroic properties. Recently, Reaney and co-workers demonstrated that rare-earth doping can induce the formation of antipolar order with similarities to the PbZrO₃ structure. This study reports for the first time studies of the atomic structure and chemistry of nanoscale defects in such materials